Gene Transfer in Plants
In a plant tumour cell

only a small specific segment of callus T DNA is incorporated
complete Ti plasmid is incorporated in plant nuclear DNA
may vary from plant to plant
different parts of the Ti-plasmid are incorporated

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Gene Transfer in Plants
Crown gall tissue

retains tumorous properties when cultivated
can be cultivated in vitro in absence of bacteria
both (a) and (b)
shows tumorous properties only in presence of bacteria

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Gene Transfer in Plants
Opines are

amino acid derivatives found in both normal as well as tumor tissues
amino acid derivatives found in normal tissues
None of these
amino acid derivatives found in tumor tissues

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